Rejecting promises

How do you reject promises inside the then handlers?

Restangular.all('resource').get().then(function(){

//how to reject it?

}, function(){

//how to reject it?

});

Do you just construct the rejection using $q service? I thought there might be something inside Restangular I would be using.

$q.reject();

[kellynichols]

Below is an example of returning the rejection from the then success handler. I personally prefer to use the catch handler to handle the errors.

Restangular.all('resource').get()
  .then(function(resource) {
    return $q.reject(new Error("This resource is bad."));
  })
  .catch(function(error) {
    console.log("error", error.message);
  });

[grabbou]

It just means that catch is not final and you chain them in the way you like.

$promise.then(function downloadFromServer() {

}).catch(function handleServerError(e) {

}).then(function parseServerResponse() {
// this will run if no errors above, otherwise will be skipped
});

With bluebird for example, you can chain multiple catch statements and pass error class in order to catch only the ones you are capable of handling there.